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Product Overview
Digi-Key Part Number LTC3857EUH#PBF-ND
Quantity Available 659
Can ship immediately

Manufacturer Part Number


Description Buck Regulator Positive Output Step-Down DC-DC Controller IC 32-QFN (5x5)
Lead Free Status / RoHS Status Lead free / RoHS Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Manufacturer Standard Lead Time 5 Weeks
Documents & Media
Datasheets LTC3857
EDA / CAD Models ? Download from Accelerated Designs
Catalog Page 1133 (SG2011-EN PDF)
Product Attributes Select All

Integrated Circuits (ICs)


PMIC - Voltage Regulators - DC DC Switching Controllers


Linear Technology

Series PolyPhase®
Packaging ? Tube ?
Part Status Active
Output Type Transistor Driver
Function Step-Down
Output Configuration Positive
Topology Buck
Number of Outputs 2
Output Phases 2
Voltage - Supply (Vcc/Vdd) 4 V ~ 38 V
Frequency - Switching 105kHz ~ 835kHz, 350kHz ~ 535kHz
Duty Cycle (Max) 99.4%
Synchronous Rectifier Yes
Clock Sync No
Serial Interfaces -
Control Features Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
Operating Temperature -40°C ~ 125°C (TJ)
Package / Case 32-WFQFN Exposed Pad
Supplier Device Package 32-QFN (5x5)
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Additional Resources
Standard Package ? 73
Other Names LTC3857EUHPBF

12:36:04 10/26/2016

Price & Procurement

All prices are in SGD.
Price Break Unit Price Extended Price
1 12.78000 12.78
25 8.54200 213.55
100 7.27060 727.06

Submit a request for quotation on quantities greater than those displayed.

Alternate Package | This part is also available in the following packaging:
  • Tape & Reel (TR) ? : LTC3857EUH#TRPBF-ND
  • Minimum Quantity: 2,500  Non-Stock ?
  • Quantity Available: 0
  • Unit Price: 7.42016
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